Ceiling and floor construction.



G. F. FRANSON.

amm@ .mn FLOOR CONSTRUCTION.

APILCATION FILED 3.1.5. 3. 1.9()8. -V

' Patented Jan, 25, 1910.

2 SHEETS-SHEET 2.

'Unrrsn sfrnrns PATENT runnen;

CHARLES F. RKSON, OF BROOKLYN, NEW YOBLV CEILING AKD FLOGR CONSTRUCTION. 5

i? S 7.23m).

i Application :nul Januari a,

',fl. 1.-!! 'rn/mm it 'muy concern: lie it knov'n that. l, CHARLES F. Flusses, .i citizen of the United States of America, und n resident of Brooklyn, county of Kir "s, :unl State of New York.y have invented certain new and useful improvements in Celliu; aud Floor Construction, of which following is a specitication, reference being had lo the accoxnpnu ying drawings, fornnng u nari thereof.

lj.' invention relates to ceiling and floor monroe-tion otthe type em layed in so' culled lire-prooi buildin r, Suc construction also being sometimes csignated as fire- 'l'he nietellie structure of the buildintg includ-cs r. number of beams usually of I- crm, arranged parallel to one another in the various horizontal planes which constitute the dividiru:l lines between the several stories of the building. lt is common at the present time to employ reinforced concrete between und surrounding the said I beams to fprm generally the ceiling of one story, and the floor of another, said concrete being rast in position 'in forms which are supported tem-= porsi-ily by the beams. This method is necersurily bot-h slow and laborious, und furthermore, it is uit/c ex. ensive. The forms employed being no: about in the building under construction are soon destroyed; furthermore, a large number of these forms have to be employed because it is necessary to leave them in place quite a. while owing Specification of Letters retest. Y Patented Jan. 25, 1910.

1998. Sem) lo. 408,183.

holding, auch' reinforced bikers bei l Ofi suitable size and shape to be support upon the beams, and provide ,them with flexible metallic 'straps extending lateraiiy theref from which may be employed to embrace an es of the beams, Wherebyto hold the bloc s firmly in any position 1." Ywhich they e may be placed. Blocks of this character may be prepared in an;1 number before they are required for use and when so required may be shipped to the point of use and quickly placed in position.

loymeut of forms at the building, and the locks being alreadyset hard and rigid'wlll support weight inmediately they are put in position. I also su ply blocks of various shapes for surroun ing the different por- Lions of exposed metal in the buildin and I provide these blocks with similar exible straps bv which they may be suspended in place. also provide a peculiar construction for suportug U-shaped blocks'upon horizontal anged beams, which blocks may be hcldnemporarily in position by means of the straps and then supported permanently by means of an interlocking concrete filling, such as I will presently describe.. The 'various blocks or slabs are of "course con-7 nected together by means of cement, inortar or the like, so as to malte a tiht joint and the ioor slabs maybe halved together or 'otherwise joined in any suitable manner.

In order that my invention may be fully' understood,A I will now roceed io describe This obviates the em- 'i :is to lhetimc it taires for the concrete to set propen cmbodiment thereof, avin reference tov 90V erly. Even when a very lar e number of the accompanying drawings il ustrutin the forms are employed, so that t e work may salue, and will then point out the nove fea-` be carried on continuously without waiting turcs in claims. i, for one portion to wt in order to remove the lu the-drawings: Figure 1 is a view iu veru forms therefrom to employ them again, this tical transverse section through a floor or 95' method occasions delay in the building opcrr-,cihug construction cmbod 'ing' my' inveni L ations fcncrally, because the various floors tion. Fig. 2 is :i top view o e portion ,thcre l cannot e used for other purposes until the of." Fig. 3 isn dctuil sectional view`of the concrete becomes set nud lam. 'mmstruciiou :it righi. angles to the point of 4b It is the purpose of my present invention view of Eig. l. Fig. 4 is a dctailvview in 100 to overcome the defects above noted, whereperspective ol' `one of the floor slabs emby the expense of the forms will )e f a ploycd. Fig. L is a detail transverse seclarge extcntsaved, and whereby there will tional view showing the construction with a be no necessity to wait any length of time filling and wooden floor superposed unon the 5o after one Hoor, or one part thereof, has been concrete construction. Elf. 6 is a detail 105 finished such loor or nrt thereof being im mediatciy cupaolcv o supporting weight. To these ends I prepare reinforced concrete blocks at any suitable place, such for in- 55 stance, as at n factory et a distance from the transverse sectional viewsnowing a. moditied form of block employed for surround- A ing the horizontal I beams. y

.In Fig. 1 is shown a plurality of horizon. .ftally disposed I beams '10, which are s plrt 11 upon their inner walls and inc ose a space of the general building construction: From these I beams I suspend substantially U- shaped reinforced concrete blocks l, which are made preparatory to Settmg th em in place and are delivered at the building in their ready-made condition. These blocks are reinforced by means of metal straps 12 and-these metal straps project beyond the upper edges of the blocks and are employed for the pur ose of suspending the blocks in posit-ion. heee ends of the straps are bent over and connected together as at 13 above the top flange of the I beam and serve to hold the blocks temporarily in position. These blocks have shouldered ortions 14 between them and the I beams, which may be filled with concrete, as at l5. As the concrete sets in positionit forms a lie which locks the block securely in position, the shouldered portion 14 of the block being directly supported bv the said key.. After these U-shaped blocks 11 are' 1n position the floor slabs 16 may be put'in place. These tloor slabs (of which-one .is shown in detail in Fig. 3)- comprise reinforced cast concrete blocks with end straps l7lprotrudin0` latein :ily therefrom. -Thesstraps muy conveniently formed as extensions of the reinn .forcing strips 18 which are employed in the i construction of blocks or slabs. of thc slabs is auch as to permit the said l slabs to be directly supported by two I beams, the said width being preferably just ual to the distance between the centers o the I beams. When the slabs are set in position the stra are hammered over the top flange of the beams and in this way the slabs may be maintained securely in position. Preferably I employ anequal number of slabs with extending straps 17, and without them, and I rst set Such alternate slabs in position as have these straps and hammer the straps in position.V I then drop other slabs, such as do not employ these straps, in position between the said slabs, the whole struci ture being connected securely together by the interlocking of :he various slab members. In a direction transverse with ref peet to the I l beams the said blocks may be shouldered or inilved as at 19, whereby to make an effective Joint, and I connect. the various edges and contacting surfaces of the parts together by g,

imeans of cement, as at 20, as will be well Wires, tc. Y A

In g. 6 I have shown a modified 'form of U block for surrounding the T beam in w ich no cement or concrete liir is employed. In this case the blocks wi be supported almost .entirely by the metal stra s and the straps must hence be proportionate y stronger than would be necessary in the construction shown in the other gures.

What I claim is: 1. In building construction the combnation with arallcl horizontal su;` porting elements, -o substantially rectangular reinforced concrete slabs supported at their o osite side edges thereby, the alternate slabs )lng provided with llexible ties which project -froin said side edges for engagement with the said suppcrtin elements, and the said slabs having a sho dercd joint connection with each other alcn'tne sides at right :ingles to the sidesnt w ch they are supported.

2. In building. construction, the combination with o plurality of horizontallydisposed I beams, of a plurality of individual separate reinforced concrete slabs the body portions of which rest upon the upper flanges of the said I beams and are supported thereby, said'sl'abs having ashouldcred joint.A connection with each other in a direction transverse with respect to the I beams and the alternate slabs being rovided with flexible projecting ties, by w ich they may be fastened to the I beams, substantially as set forth. V

CHARLES F. FRANSN. Witnesses; l

D. HOWARD Hsiwoon, Y Y

nur; S. Aisnnnws, Jr.

.the pgpose of containing'piping, electric' 

